Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
  • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
  • B60R21/23—Inflatable members
  • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
  • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
  • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
  • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
  • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
  • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
  • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
  • B60R21/23—Inflatable members
  • B60R21/235—Inflatable members characterised by their material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R22/00—Safety belts or body harnesses in vehicles
  • B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
  • B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
  • B60R2021/0048—Head
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
  • B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
  • B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
  • B60R2021/0058—Shoulders
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R22/00—Safety belts or body harnesses in vehicles
  • B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
  • B60R2022/4808—Sensing means arrangements therefor
  • B60R2022/4816—Sensing means arrangements therefor for sensing locking of buckle
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
  • B60R22/00—Safety belts or body harnesses in vehicles
  • B60R22/48—Control systems, alarms, or interlock systems, for the correct application of the belt or harness
  • B60R2022/4808—Sensing means arrangements therefor
  • B60R2022/4841—Sensing means arrangements therefor for sensing belt tension

Definitions

• the invention relates to a passenger front airbag according to the preamble of claim 1 and to a vehicle having such a front passenger airbag according to claim 10.
• So-called passenger front airbags are widely used in the automotive industry and serve the protection of the passenger, namely in particular the protection of his head, in a head-on collision or a laterally offset frontal collision.
• a passenger front airbag is in the instrument panel - usually in an upper area - arranged and unfolds upon detection of a frontal impact between the instrument panel / windshield and occupants.
• the gas bag covers previous passenger front airbags are designed very large volume and cover the entire area lying before the passenger upper area of the instrument panel. As a result, they offer very good protection, as both the head and the thorax can be caught by the passenger front airbag.
• this advantage which offers a large-volume passenger front airbag, but there are also numerous disadvantages: Due to the large volume of a correspondingly large and strong gas generator must be used, which initially means a relatively high weight, which is of course always undesirable. Furthermore, large-volume front passenger bags have to develop very quickly to reach their full deployment state in time. As a result, the passenger front airbag itself can be a danger to the passenger when it is not in its standard seating position.
• the present invention has the object to further develop a passenger front airbag in that the disadvantages just described are eliminated or at least mitigated.
• This object is achieved by a passenger front airbag with the features of claim 1.
• a motor vehicle with such a passenger front airbag is specified in claim 10.
• the baffle surface of the airbag cover is therefore assigned exclusively to the head region or the head and shoulder region of the passenger.
• the airbag cover of the passenger front airbag can be designed so that it includes only a relatively small volume, preferably namely a maximum of 50 liters, especially preferably 35 to 50 liters. In special applications and requirements, a slightly larger gas bag volume of around 60 liters may be necessary.
• This somewhat larger volume (which, however, is still smaller than that of a standard passenger gas bag) may be necessary in particular in the following cases: Firstly, if the gas bag module is arranged in the uppermost region of the dashboard near the windscreen (so-called “top mount ”) and on the other hand, if the front airbag is to offer a very high degree of side protection in the event of a side-on collision.To ensure good protection even in the event of a laterally offset frontal collision, the impact area of the front airbag airbag cover in the front passenger bag fully expanded state, a concave shape such that a left and a right portion of the baffle each extend further into the interior of the motor vehicle than a central portion.
• the small gas bag volume results in a considerable weight reduction and the risk of a passenger outside his standard sitting position is significantly reduced.
• the passenger front airbag according to the invention offers ideal protection only for a belted passenger. Due to the fact that in many countries, for example in Germany, the seat belt is very high, the advantages which the passenger front airbag according to the invention offers, especially with regard to out-of-position situations, may have the disadvantages with regard to accidents non-belted occupants statistically outweigh. In order to virtually exclude accident situations with a non-belted passenger, it is preferable if the passenger front airbag according to the invention is only used in motor vehicles with a warning system for a strapped passenger is installed. Such warning systems are known and produce an unbalanced passenger an audible warning signal.
• FIG. 1 shows a lower cut
• FIG. 2 shows an upper cut
• FIG. 3 shows a further blank
• FIG. 4 shows an airbag cover, which is composed of the blanks shown in FIGS. 1 to 3, in a completely expanded state;
• FIG. 5 shows the gas bag envelope from FIG. 4 in a plan view from direction A
• FIG. 6 shows a schematic section through a front region of a FIG
• FIG. 8 shows that shown in FIG. 6 when the occupant is immersed in the gas bag cover of the front airbag
• FIG. 9 shows the illustration shown in FIG. 8 in a representation corresponding to FIG. 4,
• FIG. 9a shows that shown in FIG. 9 in the case of a laterally offset frontal collision
• FIGS. 1-3 show the blanks for the airbag cover of a front passenger airbag.
• FIG. 1 shows a lower blank 12
• FIG. 2 shows an upper blank 16
• FIG. 3 shows a further blank 18.
• Lower blank 12 and upper blank 16 are congruent, with the exception that the lower blank 12 has a gas generator opening 14.
• there is an outflow opening which, for example, can be designed as an opening in the upper blank 16 (not shown).
• Lower blank 12 and upper blank 16 each have a first forwardly projecting portion 12a, 16a and a second forwardly projecting portion 12b, 16b.
• the concave edge 12c or 16c extends between these two sections.
• the further blank 18 is essentially lenticular, ie double-convex with a lower edge 18a and an upper edge 18b.
• FIG. 4 shows the airbag skin 10 of the passenger front airbag 5 in the fully sewn expanded state.
• FIG. 5 shows the view from direction A in FIG. 4.
• the further blank 18 is virtually identical to the baffle 11 and that the baffle has a concave shape such that in the assembled state a left and a right section 11b , 11c further extend into the interior of the motor vehicle as a central portion 11a of the baffle 11. It can be seen that due to the lens shape of the further blank 18, the baffle in the middle has its maximum height. Upper and lower blank 12, 16 form the side surfaces of the airbag cover.
• FIGS. 6 and 7 show an airbag cover 10, as just described as mounted on the instrument panel of a motor vehicle front passenger bag 5 in a fully expanded state. It can be seen that the lower blank 12 partially rests on the surface of the instrument panel 20 and that the airbag cover 10 extends from here into the interior of the motor vehicle in the direction of the occupant I.
• the baffle 11 of the expanded airbag shell is positioned completely above the instrument panel and thus also assigned exclusively to the head of the occupant I.
• the occupant to be protected is in a belt-fastened state, namely by means of a safety belt 30 which has a shoulder section 32 and a pelvic section 34. Shoulder portion 32 and pelvic portion 34 are separated by a belt tongue 36.
• This belt tongue is preferably designed so that it blocks when exceeding a predetermined tensile force in the webbing and thus decoupled shoulder portion and pelvic portion of the seat belt from each other.
• a belt tongue is described, for example, in EP 1 983 857 B1, to the disclosure content of which reference is hereby explicitly made.
• the length of the pelvic portion can not increase even when the Gurtkraftbegrenzung begins, so that the desired in-position holding the pelvis is still improved.
• a detection system (not shown) which detects if an occupant sitting in the passenger seat and generates a warning sound if an occupant is detected and this is not strapped.
• FIGS. 8 and 9 show that shown in FIGS. 6 and 7 respectively when the occupant I plunges into the airbag skin 10, namely into the impact surface 11. It can be seen that the pool of the occupant I is essentially not due to the pool portion 34 of the safety belt 30 shifts, so that the upper body of the occupant I essentially performs a forward tilting movement after insertion of the Gurtkraftbegrenzung, so that the head is the most vorste body part of the upper body and only this is caught by the front passenger bag 5.
• the occupant's head Due to the concave shape of the baffle 11, the occupant's head is also securely caught even if, due to a laterally offset impact, it does not impinge exactly on the center of the baffle, as can be seen in FIG. 9a.
• FIGS. 10 to 13 show various alternative forms for further cutting 18.
• the further blank 18 can have side regions 18, 18 "which do not belong to the baffle surface but which are assembled in the baffle and expanded state of the airbag cover extend substantially parallel to the vehicle longitudinal direction and thus form part of the side surfaces of the airbag cover.
• FIGS. 14a to 14e show a second embodiment of an airbag cover based on its production process.
• This airbag cover also consists of three blanks (FIG. 14a), wherein two blanks 41, 42 are congruent, but not upper and lower, but rather left and right blanks.
• the two blanks 41, 42 are congruently formed in a kind of horseshoe shape and each have a recess.
• the third blank 43 is round in the embodiment shown.
• first blanks 41, 42 are placed against each other such that the indentations form a circular recess; In this case, the first blank 41 overlaps the second blank 42 in sections.
• Hidden lines are shown in dashed lines.
• the first two blanks are connected to each other by means of the first seams 45.
• These first stitches shown in dash-dotted lines are shear seams (FIG. 14b).
• the circular recess is closed by means of the third blank 43, for which purpose it is sewn by means of the second seam 46.
• This seam is also a shear seam and shown in dotted lines. However, it is also possible to form this seam as a shaved seam (FIG. 14c).
• FIG. 14d The resulting workpiece is folded along the fold lines 49 shown in FIG. 14c (FIG. 14d) and closed at the edge (FIG. 14e).
• Figure 14e is a top view.
• FIGS. 15 and 16 show a third embodiment of an airbag cover.
• This consists of two blanks, which are referred to as fourth and fifth blanks 51, 52 and, as in the first embodiment, upper and lower blanks.
• the blanks are not congruent, but the respective front edge 51c, 52c, is concave in the fourth blank 51 and wavy at the fifth blank 52.
• These two blanks also have forwardly projecting portions 51a, 51b; 52a, 52b.
• the two blanks are connected all around, for example sewn.
• a concave impact surface 11 results. LIST OF REFERENCE NUMBERS

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Automation & Control Theory (AREA)
• Air Bags (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43242905

Family Applications (1)

Country Status (9)

Families Citing this family (21)

Citations (8)

Family Cites Families (18)

• 2009
  • 2009-09-04 DE DE102009040118A patent/DE102009040118A1/de not_active Withdrawn
• 2010
  • 2010-09-02 WO PCT/EP2010/005382 patent/WO2011026617A1/de active Application Filing
  • 2010-09-02 KR KR1020127005457A patent/KR101443128B1/ko active IP Right Grant
  • 2010-09-02 EP EP10754275.5A patent/EP2473381B1/de active Active
  • 2010-09-02 CN CN201080039327XA patent/CN102481888A/zh active Pending
  • 2010-09-02 US US13/393,252 patent/US8544882B2/en not_active Expired - Fee Related
  • 2010-09-02 JP JP2012527234A patent/JP2013503771A/ja active Pending
  • 2010-09-02 BR BR112012004924-0A patent/BR112012004924B1/pt active IP Right Grant
  • 2010-09-02 RU RU2012112876/11A patent/RU2518132C2/ru active

Patent Citations (8)

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